Sleep paralysis but not paralyzed

Hii I'm new here and I was wondering if anyone has experienced this type of situation or knows the reason behind this or maybe I'm just seeing ghosts 

 In 2019 (I was around 9 or 10) I was in my mom's room with my cousin sleeping on the other side of the room, I was having a hard time sleeping and it was around 12am when I started feeling something on top of me. like the pressure of someone sitting on my leg (one of the things of sleep paralysis), I put the blanket over my head to keep my thoughts away from the feeling of whatever was on top of me afraid to look but after around 4 minutes I peaked and there was nothing. 

After another 10 minutes, I heard knocking on the window and I start to see a handprint on the window I just thought "Yeah I'm imagining this" and ignored it and try to fall asleep which wouldn't work for the next 15 minutes. The pressure felt stopped when I just started staring at the door across from me. It was almost halfway opened and there was just blackness, 

after quite some time I see these ghost-like white long fingers creep on the door and open the door more and I see this TALLL white long woman with a hat, faceless staring at me! She had to bend her neck to fit through the door. SHE STARED AT ME FOR 10 SECONDS. and my dumbass was whispering "Mommy is that you??" (My mother is black ) I was praying they were doing a prank on me. Then she jumped at me, disappearing before she could touch me. 

My mom thinks it was a nightmare, my siblings think its sleep paralysis or a ghost. I wasn't paralyzed at all and i was fully awake, and ghosts can't move things?